spon∑sor (spnsr)
n.
1. One who assumes responsibility for another person or a group during a period of instruction, apprenticeship, or probation.
2. One who vouches for the suitability of a candidate for admission.
3. A legislator who proposes and urges adoption of a bill.
4. One who presents a candidate for baptism or confirmation; a godparent.5. One that finances a project or an event carried out by another person or group, especially a business enterprise that pays for radio or television programming in return for advertising time.